Abiezer jameson



gleiten gieten battent @ffice `ABIEZER JAMESON, OF TRENTON, NEW JERSEY.

Letters Patent No. 66,712, dated July 16, 1367.

IMPROVED VISE.

TO ALL WHOM IT MAY OONGERN:

Bc it known that I, ABIEZR JAMESON, of Trenton, New Jersey, have invented certain improvements in- Vises; and I do hereby declare thefollowing to be a full, clear, and exact description of the saine, Vreference being had to the accompanying drawing, and to the letters of reference marked thereon.

My invention consists of a nut connected to the jaw of a vise during the process of casting the saine, as described hereafter, so that the said nut may florn. a permanent part'of the jaw.

My invention further consists of the peculiar combination', described hereafter, ot' vthe said jaw and its nut with a slotted arm ofthe other jaw.

In order to enable others skilled in the art to mak-c and use my invention, I will now proceed to describe its construction and operation, reference being had to the accompanying drawing, which forms a part of this specification, and in which- Figure lvis a longitudinalsection of my improved vise.

Figure 2 a seetion on the line 1 2, tig, 1.

Figure 3 an exterior view of part of the vise; and

Figure @an exterior View of another portion of the vise.

The inner jaw A of the vise is secured to or forms a part o'f' a plate, B, at the under side of' which is n projection, a, the latter having an opening for the passage of a bolt, by which the vise is secured to a bench or bracket. l From the outer jaw Al projects a hollow arm, C, which slides in an opening, X, in thc jaw A, and in a tubular projection, In, extending from the rear side of the latter jaw. Through the jaw A passes a screw, D, the inner end of which projects into the hollow arm C, the usual handle .f passing through the outer end ot" the screw, and in a recess in the jaw A fits a detachable plate, d, which projects into'an annular groove, "j, in the screw, and retains the latterin its proper longitudinal position without interfering with its free rotary nievement. In the centre of the opening X, and in the hollow arnrO, is a nut, E, in which Aturns. the screw D, and which has lateral projections e c secured to the jaw A during the process of casting the same, thus forming a permanent part of the said jaw, and in the opposite sides of the arm C are longitudinal slots e c, through which pass the said projections e e, the slots extending to the end of the arm C, to which is fitted a detachable cap or plate, g. Inasmuch as thc nut is permanentlyY connected'to the jawA it Vwill be maintained iirmlyin its position, the bending ofthe screw or the fracture of the nut, which results from any change in the position of the latter, being thus prevented, while the expensive fitting required to secure a detachable nut in its place is avoided. The screw D may be detached'without entirely removing the jaw A, by withdrawing the latter until the screw passes from the nut E, and then detaching the plate cl, If desired, the plate g may be then removed to' allow the jaw A to be detached.

I claim as my invention, and desire to secure by Letters Patent- The combination of the jaw A', its hollow shank or arm C and screw D, and the slotted jaw A and nut E, when the latter is arranged within the slot or opening in the jaw and connected to the saine as described.

In testimony whereof I have signed my name to this specieation in the presence of two subscribing witnesses.

ABIEZER JAMESON. Witnesses z CHARLES E. FOSTER, JOHN WHITE. 

